<template>
  <view>
    <view class="goods-list">
      <view v-for="(goods , i) in goodsList" :key="i" @click="gotoDetail(goods)">
        <my-goods :goods="goods"></my-goods>
      </view>
    </view>
  </view>
</template>

<script>
  export default {
    data() {
      return {
        //请求参数对象
        queryObj:{
          query:'',
          cid:'',
          pagenum:1,
          pagesize:10
        },
        goodsList:[],
        total:0,
        // 节流阀
        isloading:false
        
      };
    },
    onLoad(options) {
      // console.log(options)
      this.queryObj.query = options.query || ''
      this.queryObj.cid = options.cid || ''
      console.log(this.queryObj)
      
      this.getGoodsList()
    },
    methods: {
      //获取商品列表数据的方法
     async getGoodsList(cb){
       // 打开节流阀
       this.isloading = true
     const {data : res} = await uni.$http.get('/api/public/v1/goods/search',this.queryObj)
     // 关闭节流阀 
     this.isloading = false
     cb && cb()
     if(res.meta.status !== 200) return  uni.$http.$showMsg()
     
     this.goodsList = [...this.goodsList,...res.message.goods]
     this.total = res.message.total
      },
      gotoDetail(goods){
        uni.navigateTo({
          url:'/subpkg/goods_detail/goods_detail?goods_id=' + goods.goods_id 
        })
      }
    },
    onReachBottom(){
      if(this.queryObj.pagenum * this.queryObj.pagesize >= this.total) return uni.$http.$showMsg('数据加载完毕!')
      if(this.isloading) return
      
      //让页码值自增加一 
       this.queryObj.pagenum ++
       this.getGoodsList()
    },
    onPullDownRefresh() {
      //重置关键数据
      this.queryObj.pagenum = 1
      this.total = 0
      this.isloading = false
      this.goodsList = []
      // 重新发起数据请求
      this.getGoodsList( () => uni.stopPullDownRefresh())
    }
    
  }
</script>

<style lang="scss">

</style>
